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binutils: Add --enable-new-dtags
This option makes ld use DT_RUNPATH instead of DT_RPATH. DT_RPATH is generally considered bad because it takes precedence over LD_LIBRARY_PATH. For example, eog is linked with -rpath /usr/lib/eog, and with DT_RPATH if an old eog is already installed we are basically impossible to debug a new eog build w/o overwriting the system installation first or explicitly using "ld.so --inhibit-rpath" to invoke it. This "new" actually means "new in 2000," it's 24 years ago and all other distros has enabled it. Thus I guess some unexplainable "test suite uses installed library instead of the just built one" issues in BLFS are actually caused by this difference: the package author just assumes everyone is using DT_RUNPATH thus they just set LD_LIBRARY_PATH and consider it enough to test with the just built libraries, but DT_RPATH breaks this expectation. Let's eliminate the difference as it seems not doing anything good and doing so just takes one switch.
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@ -74,6 +74,7 @@ cd build</userinput></screen>
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--disable-nls \
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--enable-gprofng=no \
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--disable-werror \
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--enable-new-dtags \
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--enable-default-hash-style=gnu</userinput></screen>
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<variablelist>
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@ -130,6 +131,17 @@ cd build</userinput></screen>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>--enable-new-dtags</parameter></term>
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<listitem>
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<para>Этот параметр заставляет компоновщик использовать тег <quote>runpath</quote>
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для встраивания путей поиска библиотек в исполняемые файлы и общие библиотеки
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вместо традиционного тега <quote>rpath</quote>. Это упрощает отладку динамически
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подключаемых исполняемых файлов и устраняет потенциальные проблемы в наборах тестов
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некоторых пакетов.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>--enable-default-hash-style=gnu</parameter></term>
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<listitem>
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@ -73,6 +73,7 @@ cd build</userinput></screen>
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--enable-gprofng=no \
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--disable-werror \
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--enable-64-bit-bfd \
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--enable-new-dtags \
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--enable-default-hash-style=gnu</userinput></screen>
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<variablelist>
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@ -57,6 +57,7 @@ cd build</userinput></screen>
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--enable-shared \
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--disable-werror \
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--enable-64-bit-bfd \
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--enable-new-dtags \
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--with-system-zlib \
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--enable-default-hash-style=gnu</userinput></screen>
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